CVE-2021-24152 json
Popup Builder < 3.74 - Authenticated Reflected Cross-Site Scripting (XSS)
published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11066
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
The "All Subscribers" setting page of Popup Builder was vulnerable to reflected Cross-Site Scripting.
Patch / fix
- sygnoos popup_builder 3.74
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Unknown Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/597e9686-f4e2-43bf-85ef-c5967e5652bd
third-party-advisory
Sources
- CVE List CVE-2021-24152
- NVD CVE-2021-24152
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.